Molding-machine



(No Model.)

T. A. GONSIDINE.

MOLDING MACHINE.

Patented Feb. 26, 1889.,

WII/ N PETERS. PllolcrLilhcgmphcn wammgmn. D. C.

UNiTnn STATES PATENT OFFICE.

THOMAS A. ("ONSIDTNIL OF CHICAGO, ILLINOIS.

MOLDING-MACHINE.

SPECIFECATION forming part of Letters Patent No. 398,704, dated February 26, 1889.

Application filed October 27, 1888. Serial No. 289,354- (No model.)

To all whom it 72mg CON/66TH:

Be it known th at '1, Teen AS A. tToNsIDmE, a citizen of the United Stat f, residing at Chicago, in the county of (00k and State of Illinois, have invented a. new, useful, and Improved Moldin 'Jlachinc, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in which-- Figure 1 is a side view of my improved machine, showing a flask upon the m old-board in position for tamping. Fig. 2 is a transverse vertical sectionalview of said machine. Fig. 3 is a side view showing the parts in a reverse position from that indicated in Fig. 1.

Like letters of reference in the different figures indicate like parts. v

The object of my invention is to provide a machine for withdrawing the respective sec tions of metal-molding ilasks containing a formed sand mold from the pattern, and, if necessary, reprinting the sand mold.

To this end my invention consists in a reversible molding-board, in combination with a receiving-rest for the flask section and means for raising and lowering said rest with accuracy, ease, and speed, all of which ishereinatter more particularly described, and dcfinitcly pointed out in the claim.

Beferrin to the drawings, A represents the foundation or l'iorizontal frame-work of the machine, to the respective ends of which are rigidly secured. vertical standards 13 B, preferably made hollow, as shown. A hollow shaft, C, haying flanges r; c at its respective ends, is rigidly secured to said standards B, at or near the top thereof, by means of screws passed through. said flanges. as shown. Loosely mounted upon said hollow shaft are bearings (Z (7, which are bolted to a flat molding-board, D. Said molding-board is thus free to be revolved upon the hollow shaft, but may be secured in any desired position by means of a set-screw, d, passin through one of the bearings d to eng go with ihehollow shaft The pattern E is rigidly attaclmd in an y wellknown way to the mold-boariil l). A shaft, F, is loosely projected through the hollow shaft G, which serves as a bearing therefor.

chains f j, which are arranged to be wound thereon, as upon a windlasjgby means of the crank 1', attached to the end of the shaft. The opposite ends of said cords f are attached to a bar, G, which is extended lengthwise of the machine and passed through the slots 1) Z) formed in the uprights l3 l3, and which serve as guides for the bar G in its vertical movement. Vertical projections 5 f], rigidly at tached to the bar G and adjusted within the slots 1) b, respectively, serve to prevent the bar G from tilting. Horizontal cross-bars g g are rigidly attached to the bar G, and serve as rests for the flask-section when drawn from the mold, as hereinafterstated. The vertical projections or guides g g serve to retain said cross-bars g g in a horizontal plane.

The operation of said machine is asfollows:

Assuming the mold-board l) to be adjusted C until it rests in a horizontal plane beneath the shaft, as shown in Fig. 3, when the setscrew (1 is tightened to hold it in the desired position. The crank f then turned,which raises the bar G until the cross-bars or rests g g are brought firmly against the flasks, when the clamps 72' 72' are detached, and the rests, with the flask thereon, lowered by means of the windlass from the mold, as shown in Fig. 2 and indicated in dotted lines in Fig. 1. When this is done, the operation may be repeated with the remainingsection or sections of the flask.

Should it be necessary to reprint, which is not always required, the section H of the flask may be lowered from the pattern, sprinkled with the usual powder and again raised by means of the windlass until the pattern is embedded in the mold formerly made therel by, when it is again withdrawn and the flask- Attached to the shaft F, at or near the reing easy and accurate from the fact that it spective ends, as shown, are wire cords or section removed. It is obvious that this air ran gement renders the operation. of reprintinsures perfect registration, while themoveranged in suit-able slots in the frame of the ment is rapidly performed. machine for maintaining said bars g g in a Having thus described my said invention, horizontal position, substantially as shown I 5 whatI claim, and desire to secure by Letters and described. 5 Patent, is In testimony whereof I have signed this The combination, in a niolding-machine, of specification,in the presenceof two subscribthe mold-board D, bearings d d,set-screw (1', ing witnesses, this 13th day of October, 1888. stationary hollow shaft C, shaft F, extending r T T through the hollow shaft 0, and having a Wind- PHOS' CO} SIDIL 10 lass attached thereto,bar G, having cross-bars Vitnesses:

g g, flexible connections f fifor connecting D. FLETCHER, said barG with the shaft F, and parts g g, ar- DAVID STEVENS. 

